Brown gook on board

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  • kevinm34232
    Badcaps Legend
    • May 2012
    • 1884
    • USA

    #1

    Brown gook on board

    What is this and what's the best way to clean it up?? Can it cause problems?
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  • mariushm
    Badcaps Legend
    • May 2011
    • 3799

    #2
    Re: Brown gook on board

    It looks like flux to me.

    You can leave it there or remove it with isopropyl alcohol

    Comment

    • kevinm34232
      Badcaps Legend
      • May 2012
      • 1884
      • USA

      #3
      Re: Brown gook on board

      It doesn't come off very easy with alcohol and a Q-tip, it's hardened but does come off in smooth areas with enough rubbing.

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA

        #4
        Re: Brown gook on board

        Try using Q-tip and Acetone.
        Never stop learning
        Basic LCD TV and Monitor troubleshooting guides.
        http://www.badcaps.net/forum/showthr...956#post305956

        Voltage Regulator (LDO) testing:
        http://www.badcaps.net/forum/showthr...999#post300999

        Inverter testing using old CFL:
        http://www.badcaps.net/forum/showthr...er+testing+cfl

        Tear down pictures : Hit the ">" Show Albums and stories" on the left side
        http://s807.photobucket.com/user/budm/library/

        TV Factory reset codes listing:
        http://www.badcaps.net/forum/showthread.php?t=24809

        Comment

        • Glitcher
          Badcaps Veteran
          • Mar 2013
          • 673
          • USa

          #5
          Re: Brown gook on board

          Its usually fine, I've seen it on most of the main boards I've salvaged from Samsung panels.

          Comment

          • Agent24
            I see dead caps
            • Oct 2007
            • 4940
            • New Zealand

            #6
            Re: Brown gook on board

            Flux is pretty low on the list of things causing problems. It's not impossible, but it would have to be a very sensitive circuit.
            "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
            -David VanHorn

            Comment

            • kevinm34232
              Badcaps Legend
              • May 2012
              • 1884
              • USA

              #7
              Re: Brown gook on board

              Is it safe to "dip" the board in Acetone, and maybe scrub with a tooth brush? Is there any need to use alcohol after to remove residue or will it evaporate?

              Comment

              • mariushm
                Badcaps Legend
                • May 2011
                • 3799

                #8
                Re: Brown gook on board

                Acetone can attack the plastics on capacitor and other components, or dissolve the printed text on various components.

                I would advise against it, especially as it doesn't really look like you need to clean it.

                Comment

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